MAX9814
Overview
The MAX9814 is a high-quality microphone amplifier featuring integrated Automatic Gain Control (AGC) and a low-noise internal microphone bias. It is designed to improve the dynamic range of audio signals by automatically adjusting gain to prevent clipping while maintaining high sensitivity for quiet sounds.
Why Choose This Part
The integrated AGC reduces the need for external processing power to manage audio levels, while the 30nV/rtHz noise density ensures high signal integrity. It offers flexible configuration through three selectable gain settings (40dB, 50dB, and 60dB) and programmable attack/release ratios.
Applications
Getting Started
To evaluate the IC, engineers often use the MAX9814EVKIT or popular breakout boards from Adafruit for rapid prototyping on breadboards. Ensure the compression ratio and timing are set by selecting appropriate capacitor values for the CT and CG pins as specified in the datasheet.
